<template>
  <div class="app-container">
    <el-form
      :model="queryParams"
      ref="queryForm"
      size="small"
      :inline="true"
      v-show="showSearch"
      label-width="68px"
    >
      <el-form-item label="年级名称" prop="gradeName">
        <el-select
          v-model="queryParams.gradeName"
          placeholder="年级名称"
          clearable
          @change="handleQuery"
        >
          <el-option label="初一" value="初一" />
          <el-option label="初二" value="初二" />
          <el-option label="初三" value="初三" />
        </el-select>
      </el-form-item>
      <el-form-item label="年级编码" prop="gradeCode">
        <el-select
          v-model="queryParams.gradeCode"
          placeholder="年级编码"
          clearable
          @change="handleQuery"
        >
          <el-option label="J1" value="J1" />
          <el-option label="J2" value="J2" />
          <el-option label="J3" value="J3" />
        </el-select>
      </el-form-item>
      <el-form-item label="状态" prop="isActive">
        <el-select v-model="queryParams.isActive" placeholder="状态" clearable>
          <el-option label="启用" value="1" />
          <el-option label="禁用" value="0" />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button
          type="primary"
          icon="el-icon-search"
          size="mini"
          @click="handleQuery"
          >搜索</el-button
        >
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery"
          >重置</el-button
        >
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['content:gradeOption:add']"
          >新增</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['content:gradeOption:edit']"
          >修改</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['content:gradeOption:remove']"
          >删除</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['system:banner:export']"
          >导出</el-button
        >
      </el-col>
      <right-toolbar
        :showSearch.sync="showSearch"
        @queryTable="getList"
      ></right-toolbar>
    </el-row>

    <el-table
      v-loading="loading"
      :data="gradeOptionList"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="序号" align="center" prop="id" width="80" />
      <el-table-column
        label="年级名称"
        align="center"
        prop="gradeName"
        :show-overflow-tooltip="true"
      />
      <el-table-column
        label="年级编码"
        align="center"
        prop="gradeCode"
        :show-overflow-tooltip="true"
      />
      <el-table-column
        label="显示顺序"
        align="center"
        prop="displayOrder"
        width="100"
      />
      <el-table-column label="状态" align="center" prop="isActive" width="100">
        <template slot-scope="scope">
          <el-tag :type="scope.row.isActive == '1' ? 'success' : 'danger'">
            {{ scope.row.isActive == "1" ? "启用" : "禁用" }}
          </el-tag>
        </template>
      </el-table-column>
      <el-table-column
        label="描述"
        align="center"
        prop="description"
        :show-overflow-tooltip="true"
      />
      <el-table-column
        label="操作"
        align="center"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['content:gradeOption:edit']"
            >修改</el-button
          >
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['content:gradeOption:remove']"
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改年级选项对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="年级名称" prop="gradeName">
          <el-select
            v-model="form.gradeName"
            placeholder="请选择年级名称"
            @change="handleGradeNameChange"
          >
            <el-option label="初一" value="初一" />
            <el-option label="初二" value="初二" />
            <el-option label="初三" value="初三" />
          </el-select>
        </el-form-item>
        <el-form-item label="年级编码" prop="gradeCode">
          <el-select v-model="form.gradeCode" placeholder="请选择年级编码">
            <el-option v-if="form.gradeName === '初一'" label="J1" value="J1" />
            <el-option v-if="form.gradeName === '初二'" label="J2" value="J2" />
            <el-option v-if="form.gradeName === '初三'" label="J3" value="J3" />
          </el-select>
        </el-form-item>
        <el-form-item label="显示顺序" prop="displayOrder">
          <el-input-number
            v-model="form.displayOrder"
            :min="0"
            placeholder="显示顺序"
          />
        </el-form-item>
        <el-form-item label="状态" prop="isActive">
          <el-switch
            v-model="form.isActive"
            active-text="正常"
            inactive-text="禁用"
            active-value="1"
            inactive-value="0"
          />
        </el-form-item>
        <el-form-item label="描述" prop="description">
          <el-input
            v-model="form.description"
            type="textarea"
            placeholder="请输入描述信息"
            :rows="3"
          />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {
  listGradeOption,
  getGradeOption,
  delGradeOption,
  addGradeOption,
  updateGradeOption,
} from "@/api/system/gradeOption";

export default {
  name: "GradeOption",
  data() {
    const checkDuplicateGrade = (rule, value, callback) => {
      // 编辑模式下，允许使用当前记录的值
      if (this.form.id) {
        const currentItem = this.gradeOptionList.find(
          (item) => item.id === this.form.id
        );
        if (currentItem && currentItem.gradeCode === value) {
          callback();
          return;
        }
      }

      // 检查是否已存在相同年级编码
      const isDuplicate = this.gradeOptionList.some(
        (item) => item.gradeCode === value
      );
      if (isDuplicate) {
        callback(new Error("已存在该年级，请勿重复添加"));
      } else {
        callback();
      }
    };

    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 年级选项表格数据
      gradeOptionList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        gradeName: undefined,
        gradeCode: undefined,
        isActive: undefined,
      },
      // 表单参数
      form: {
        id: undefined,
        gradeCode: undefined,
        gradeName: undefined,
        displayOrder: 0,
        isActive: "1",
        description: undefined,
      },
      // 表单校验
      rules: {
        gradeName: [
          { required: true, message: "年级名称不能为空", trigger: "change" },
        ],
        gradeCode: [
          { required: true, message: "年级编码不能为空", trigger: "change" },
          { validator: checkDuplicateGrade, trigger: "change" },
        ],
        displayOrder: [
          { required: true, message: "显示顺序不能为空", trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询年级选项列表 */
    getList() {
      this.loading = true;
      listGradeOption(this.queryParams).then((response) => {
        this.gradeOptionList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: undefined,
        gradeCode: undefined,
        gradeName: undefined,
        displayOrder: 0,
        isActive: "1",
        description: undefined,
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map((item) => item.id);
      this.single = selection.length !== 1;
      this.multiple = !selection.length;
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "新增年级选项";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids;
      getGradeOption(id).then((response) => {
        this.form = response.data;
        // 确保isActive为字符串类型，以便switch组件正确显示
        this.form.isActive = String(this.form.isActive);
        this.open = true;
        this.title = "修改年级选项";
      });
    },
    /** 年级名称变化处理 */
    handleGradeNameChange(value) {
      // 根据年级名称自动设置对应的年级编码
      if (value === "初一") {
        this.form.gradeCode = "J1";
      } else if (value === "初二") {
        this.form.gradeCode = "J2";
      } else if (value === "初三") {
        this.form.gradeCode = "J3";
      } else {
        this.form.gradeCode = undefined;
      }
    },
    /** 提交按钮 */
    submitForm: function () {
      this.$refs["form"].validate((valid) => {
        if (valid) {
          if (this.form.id != undefined) {
            updateGradeOption(this.form).then((response) => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addGradeOption(this.form).then((response) => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal
        .confirm('是否确认删除年级选项编号为"' + ids + '"的数据项？')
        .then(function () {
          return delGradeOption(ids);
        })
        .then(() => {
          this.getList();
          this.$modal.msgSuccess("删除成功");
        })
        .catch(() => {});
    },
    handleExport() {
      this.download(
        "/system/gradeOption/export",
        this.queryParams,
        `gradeOption_${Date.now()}.xlsx`
      );
    },
  },
};
</script>

<style scoped>
</style>